1; Check that stack alignment can be forced. Individual targets should test their
2; specific implementation details.
3
4; RUN: llc < %s -stackrealign | FileCheck %s
5; CHECK-LABEL: @f
6; CHECK-LABEL: @g
7
8; Stack realignment not supported.
9; XFAIL: sparc
10
11; NVPTX cannot select dynamic_stackalloc
12; XFAIL: nvptx
13
14define i32 @f(i8* %p) nounwind {
15entry:
16  %0 = load i8, i8* %p
17  %conv = sext i8 %0 to i32
18  ret i32 %conv
19}
20
21define i64 @g(i32 %i) nounwind {
22entry:
23  br label %if.then
24
25if.then:
26  %0 = alloca i8, i32 %i
27  call void @llvm.memset.p0i8.i32(i8* %0, i8 0, i32 %i, i1 false)
28  %call = call i32 @f(i8* %0)
29  %conv = sext i32 %call to i64
30  ret i64 %conv
31}
32
33declare void @llvm.memset.p0i8.i32(i8*, i8, i32, i1) nounwind
34
35!llvm.module.flags = !{!0}
36!0 = !{i32 2, !"override-stack-alignment", i32 32}
37